Answer
see solution
Work Step by Step
It is given that insulin is 51 amino acids long.
Each amino acid is encoded by a single codon that comprises 3 nucleotides.
So, total $51 X 3 = 153$ nucleotides would be required to encode insulin.
In general, most of the proteins are encoded as pre-proteins which are processed to form an active protein. So, generally, the gene DNA sequence is much larger than the corresponding final protein sequence.
